Maintenance-Free Braking Solution for Mining Equip

Featured Product from Force Control Industries, Inc.

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The MagnaShear™ motor brakes from Force Control Industries are ideal for applications where the motor is stopped, or reversed, each cycle such as loaders/unloaders, conveyors, rail car spotters and dumpers, overland and internal tripper cars, rotary coal sweep samplers, and more. 

 Suitable for a Wide Range of Motor Sizes

These proven motor brakes are available to accommodate a wide range of applications.   Spring set torque ratings from 3 to 1250 foot-pounds are available.  The MagnaShear™ motor brakes can be sized to the correct torque value independent of the motor frame size or horsepower by changing the combination of springs and friction discs.

MagnaShear™ motor brakes feature a “quick mount” feature for quick and easy mounting to drive motors in NEMA frame sizes 56 to 449 or some IEC frame motors.  They are shipped ready to install, with no assembly or adjustments required. 

MagnaShear™ motor brakes can be furnished as a complete motor and brake assembly (assembled brake motor), or to mount on a machine frame or other special mounting configuration. 

These proven motor brakes are totally enclosed from outside contaminants, with seal integrity for harsh and washdown environments.  A modular design /assembly allows for ease of servicing and maintenance. 

Hazardous duty units for class II, Group a, b, c, d, e and f are also available, as well as low temperature or Artic duty down to -40 degrees.

The totally enclosed MagnaShear™ motor brakes are impervious to moisture, dirt and dust that is common in concrete block plants, as well as asphalt shingle manufacturing, coal and mineral mining, bulk material handling, forest products manufacturing, and more.

How Oil Shear Works

Unlike dry brakes, oil shear technology includes a film of transmission fluid between the brake disc and the drive plate.  As the fluid is compressed, the fluid molecules are put in shear– thus imparting torque to the other side.  This torque transmission causes the rotating surface to come to a stop.  Since most of the work is done by the fluid particles in shear, wear is virtually eliminated.  Elimination of wear also eliminates the need for adjustments which are common for dry braking systems.

In addition to transmitting torque, a patented fluid recirculation system helps to dissipate heat which causes friction disc wear and eventual failure in traditional dry brakes. 

Along with heat removal and torque transmission, the fluid serves to continually lubricate all components of the oil shear brake, increasing their service life. 

Therefore the MagnaShear™ brakes with oil shear technology provide significantly longer service life, characterized by virtually maintenance-free operations and No Adjustment – Ever!

The oil shear technology also provides a smooth “cushioned” stop which reduces shock to the drive system, further extending service life of downstream components.